Angie and Naomi had gotten into a fight in Sardinia. Here's the article:

NY POST/PAGE SIX....
BEFORE Naomi Campbell's boyfriend Flavio Briatore allegedly beat her up, she
fought with a fellow model. Campbell was at Briatore's club in Sardinia one
night when she butted heads with Angie Everhart, who was staying on
restaurateur Giuseppe Cipriani's yacht. "They called each other ‘bitch,' and
then Angie threw a glass of champagne at her," says our source. Fashion Cafe
owner Stefano Chitis intervened and got a bucket of ice dumped over his head.